23198958 has 12 divisors (see below), whose sum is σ = 50264448. Its totient is φ = 7732980.

The previous prime is 23198953. The next prime is 23199017. The reversal of 23198958 is 85989132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23198953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644398 + ... + 644433.

It is an arithmetic number, because the mean of its divisors is an integer number (4188704).

Almost surely, 2^23198958 is an apocalyptic number.

23198958 is an abundant number, since it is smaller than the sum of its proper divisors (27065490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23198958 is a wasteful number, since it uses less digits than its factorization.

23198958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288839 (or 1288836 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 23198958 is about 4816.5296635648. The cubic root of 23198958 is about 285.2043594308.

The spelling of 23198958 in words is "twenty-three million, one hundred ninety-eight thousand, nine hundred fifty-eight".